45726440 has 16 divisors (see below), whose sum is σ = 102884580. Its totient is φ = 18290560.

The previous prime is 45726433. The next prime is 45726451. The reversal of 45726440 is 4462754.

It can be written as a sum of positive squares in 2 ways, for example, as 41654116 + 4072324 = 6454^2 + 2018^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45726397 and 45726406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571541 + ... + 571620.

Almost surely, 2^45726440 is an apocalyptic number.

45726440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45726440 is an abundant number, since it is smaller than the sum of its proper divisors (57158140).

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

45726440 is a wasteful number, since it uses less digits than its factorization.

45726440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143172 (or 1143168 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 45726440 is about 6762.1327996424. The cubic root of 45726440 is about 357.5931001109.

The spelling of 45726440 in words is "forty-five million, seven hundred twenty-six thousand, four hundred forty".