1421252350 has 72 divisors (see below), whose sum is σ = 3174493248. Its totient is φ = 471542400.

The previous prime is 1421252341. The next prime is 1421252351. The reversal of 1421252350 is 532521241.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421252351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 66594 + ... + 85306.

It is an arithmetic number, because the mean of its divisors is an integer number (44090184).

Almost surely, 2^1421252350 is an apocalyptic number.

1421252350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421252350 is an abundant number, since it is smaller than the sum of its proper divisors (1753240898).

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

1421252350 is a wasteful number, since it uses less digits than its factorization.

1421252350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18770 (or 18758 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1421252350 is about 37699.5006598231. The cubic root of 1421252350 is about 1124.3211970904.

Adding to 1421252350 its reverse (532521241), we get a palindrome (1953773591).

It can be divided in two parts, 14212523 and 50, that multiplied together give a triangular number (710626150 = T₃₇₆₉₉).

The spelling of 1421252350 in words is "one billion, four hundred twenty-one million, two hundred fifty-two thousand, three hundred fifty".