40015450 has 48 divisors (see below), whose sum is σ = 79548480. Its totient is φ = 14923520.

The previous prime is 40015441. The next prime is 40015483. The reversal of 40015450 is 5451004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152019 + ... + 152281.

It is an arithmetic number, because the mean of its divisors is an integer number (1657260).

Almost surely, 2^40015450 is an apocalyptic number.

40015450 is a deficient number, since it is larger than the sum of its proper divisors (39533030).

40015450 is a wasteful number, since it uses less digits than its factorization.

40015450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 40015450 is about 6325.7766321615. The cubic root of 40015450 is about 342.0392155481.

Adding to 40015450 its reverse (5451004), we get a palindrome (45466454).

The spelling of 40015450 in words is "forty million, fifteen thousand, four hundred fifty".