40148542 has 24 divisors (see below), whose sum is σ = 70281000. Its totient is φ = 17151120.

The previous prime is 40148533. The next prime is 40148551. The reversal of 40148542 is 24584104.

It is an interprime number because it is at equal distance from previous prime (40148533) and next prime (40148551).

It is a super-2 number, since 2×40148542² = 3223810849451528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40148542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48492 + ... + 49312.

It is an arithmetic number, because the mean of its divisors is an integer number (2928375).

Almost surely, 2^40148542 is an apocalyptic number.

40148542 is a deficient number, since it is larger than the sum of its proper divisors (30132458).

40148542 is a wasteful number, since it uses less digits than its factorization.

40148542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 40148542 is about 6336.2877144271. The cubic root of 40148542 is about 342.4180051290.

The spelling of 40148542 in words is "forty million, one hundred forty-eight thousand, five hundred forty-two".