45406443540 has 48 divisors (see below), whose sum is σ = 127173799872. Its totient is φ = 12104979456.

The previous prime is 45406443491. The next prime is 45406443541. The reversal of 45406443540 is 4534460454.

It is a super-2 number, since 2×45406443540² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45406443541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112407 + ... + 321633.

It is an arithmetic number, because the mean of its divisors is an integer number (2649454164).

Almost surely, 2^45406443540 is an apocalyptic number.

It is an amenable number.

45406443540 is an abundant number, since it is smaller than the sum of its proper divisors (81767356332).

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

45406443540 is a wasteful number, since it uses less digits than its factorization.

45406443540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212856 (or 212854 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

The spelling of 45406443540 in words is "forty-five billion, four hundred six million, four hundred forty-three thousand, five hundred forty".