1421766045 has 96 divisors (see below), whose sum is σ = 2953027584. Its totient is φ = 618710400.

The previous prime is 1421766043. The next prime is 1421766053. The reversal of 1421766045 is 5406671241.

1421766045 is a `hidden beast` number, since 1 + 42 + 1 + 7 + 6 + 604 + 5 = 666.

It is not a de Polignac number, because 1421766045 - 2¹ = 1421766043 is a prime.

It is a super-4 number, since 4×1421766045⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421766043) 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 95 ways as a sum of consecutive naturals, for example, 2252880 + ... + 2253510.

It is an arithmetic number, because the mean of its divisors is an integer number (30760704).

Almost surely, 2^1421766045 is an apocalyptic number.

1421766045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1421766045 is an abundant number, since it is smaller than the sum of its proper divisors (1531261539).

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

1421766045 is a wasteful number, since it uses less digits than its factorization.

1421766045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1421766045 is about 37706.3130655862. The cubic root of 1421766045 is about 1124.4566383458.

The spelling of 1421766045 in words is "one billion, four hundred twenty-one million, seven hundred sixty-six thousand, forty-five".