1421858088 has 144 divisors (see below), whose sum is σ = 4494372480. Its totient is φ = 404905536.

The previous prime is 1421858077. The next prime is 1421858099. The reversal of 1421858088 is 8808581241.

It is an interprime number because it is at equal distance from previous prime (1421858077) and next prime (1421858099).

It is a super-2 number, since 2×1421858088² = 4043360844822031488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1647145 + ... + 1648007.

It is an arithmetic number, because the mean of its divisors is an integer number (31210920).

Almost surely, 2^1421858088 is an apocalyptic number.

1421858088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421858088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2247186240).

1421858088 is an abundant number, since it is smaller than the sum of its proper divisors (3072514392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421858088 is a wasteful number, since it uses less digits than its factorization.

1421858088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The square root of 1421858088 is about 37707.5335708927. The cubic root of 1421858088 is about 1124.4809030339.

The spelling of 1421858088 in words is "one billion, four hundred twenty-one million, eight hundred fifty-eight thousand, eighty-eight".