40148736 has 72 divisors (see below), whose sum is σ = 108732624. Its totient is φ = 13148160.

The previous prime is 40148711. The next prime is 40148743. The reversal of 40148736 is 63784104.

It is a super-2 number, since 2×40148736² = 3223842004795392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40148697 and 40148706.

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, 46420 + ... + 47276.

Almost surely, 2^40148736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40148736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54366312).

40148736 is an abundant number, since it is smaller than the sum of its proper divisors (68583888).

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

40148736 is an equidigital number, since it uses as much as digits as its factorization.

40148736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 923 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 40148736 is about 6336.3030230569. The cubic root of 40148736 is about 342.4185566558.

The spelling of 40148736 in words is "forty million, one hundred forty-eight thousand, seven hundred thirty-six".