40493730 has 32 divisors (see below), whose sum is σ = 97848000. Its totient is φ = 10724672.

The previous prime is 40493723. The next prime is 40493753. The reversal of 40493730 is 3739404.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60 + ... + 8999.

It is an arithmetic number, because the mean of its divisors is an integer number (3057750).

Almost surely, 2^40493730 is an apocalyptic number.

40493730 is an abundant number, since it is smaller than the sum of its proper divisors (57354270).

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

40493730 is a wasteful number, since it uses less digits than its factorization.

40493730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9218.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 40493730 is about 6363.4683938871. The cubic root of 40493730 is about 343.3965499790.

The spelling of 40493730 in words is "forty million, four hundred ninety-three thousand, seven hundred thirty".