40148472 has 128 divisors (see below), whose sum is σ = 127733760. Its totient is φ = 10229760.

The previous prime is 40148461. The next prime is 40148489. The reversal of 40148472 is 27484104.

It is a super-2 number, since 2×40148472² = 3223799607869568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67408 + ... + 68000.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^40148472 is an apocalyptic number.

40148472 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40148472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63866880).

40148472 is an abundant number, since it is smaller than the sum of its proper divisors (87585288).

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

40148472 is a wasteful number, since it uses less digits than its factorization.

40148472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 40148472 is about 6336.2821906856. The cubic root of 40148472 is about 342.4178061241.

The spelling of 40148472 in words is "forty million, one hundred forty-eight thousand, four hundred seventy-two".