45020100402 has 32 divisors (see below), whose sum is σ = 100095004800. Its totient is φ = 14999149584.

The previous prime is 45020100401. The next prime is 45020100443. The reversal of 45020100402 is 20400102054.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (45020100401) 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 15 ways as a sum of consecutive naturals, for example, 100902 + ... + 316577.

It is an arithmetic number, because the mean of its divisors is an integer number (3127968900).

Almost surely, 2^45020100402 is an apocalyptic number.

45020100402 is an abundant number, since it is smaller than the sum of its proper divisors (55074904398).

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

45020100402 is a wasteful number, since it uses less digits than its factorization.

45020100402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419487 (or 419481 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 45020100402 its reverse (20400102054), we get a palindrome (65420202456).

The spelling of 45020100402 in words is "forty-five billion, twenty million, one hundred thousand, four hundred two".