40494742 has 16 divisors (see below), whose sum is σ = 63101952. Its totient is φ = 19469160.

The previous prime is 40494737. The next prime is 40494763. The reversal of 40494742 is 24749404.

It is a super-4 number, since 4×40494742⁴ (a number of 32 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40494698 and 40494707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8103 + ... + 12109.

It is an arithmetic number, because the mean of its divisors is an integer number (3943872).

Almost surely, 2^40494742 is an apocalyptic number.

40494742 is a deficient number, since it is larger than the sum of its proper divisors (22607210).

40494742 is a wasteful number, since it uses less digits than its factorization.

40494742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 40494742 is about 6363.5479097749. The cubic root of 40494742 is about 343.3994106228.

The spelling of 40494742 in words is "forty million, four hundred ninety-four thousand, seven hundred forty-two".