45400729 has 8 divisors (see below), whose sum is σ = 49586688. Its totient is φ = 41224560.

The previous prime is 45400723. The next prime is 45400777. The reversal of 45400729 is 92700454.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45400729 - 2³ = 45400721 is a prime.

It is a super-2 number, since 2×45400729² = 4122452387462882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45400729.

It is not an unprimeable number, because it can be changed into a prime (45400721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10059 + ... + 13855.

It is an arithmetic number, because the mean of its divisors is an integer number (6198336).

Almost surely, 2^45400729 is an apocalyptic number.

It is an amenable number.

45400729 is a deficient number, since it is larger than the sum of its proper divisors (4185959).

45400729 is a wasteful number, since it uses less digits than its factorization.

45400729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 45400729 is about 6738.0063075067. The cubic root of 45400729 is about 356.7420268551.

The spelling of 45400729 in words is "forty-five million, four hundred thousand, seven hundred twenty-nine".