45006402540 has 72 divisors (see below), whose sum is σ = 138515595120. Its totient is φ = 10910641280.

The previous prime is 45006402533. The next prime is 45006402563. The reversal of 45006402540 is 4520460054.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 45006402498 and 45006402507.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3092355 + ... + 3106874.

It is an arithmetic number, because the mean of its divisors is an integer number (1923827710).

Almost surely, 2^45006402540 is an apocalyptic number.

It is an amenable number.

45006402540 is an abundant number, since it is smaller than the sum of its proper divisors (93509192580).

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

45006402540 is a wasteful number, since it uses less digits than its factorization.

45006402540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6199263 (or 6199250 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 45006402540 its reverse (4520460054), we get a palindrome (49526862594).

The spelling of 45006402540 in words is "forty-five billion, six million, four hundred two thousand, five hundred forty".