40253554 has 24 divisors (see below), whose sum is σ = 68003964. Its totient is φ = 17846400.

The previous prime is 40253509. The next prime is 40253561. The reversal of 40253554 is 45535204.

It can be written as a sum of positive squares in 2 ways, for example, as 37271025 + 2982529 = 6105^2 + 1727^2 .

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, 7894 + ... + 11950.

Almost surely, 2^40253554 is an apocalyptic number.

40253554 is a deficient number, since it is larger than the sum of its proper divisors (27750410).

40253554 is a wasteful number, since it uses less digits than its factorization.

40253554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122 (or 4111 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 40253554 is about 6344.5688584805. The cubic root of 40253554 is about 342.7162865677.

Adding to 40253554 its reverse (45535204), we get a palindrome (85788758).

It can be divided in two parts, 402 and 53554, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 40253554 in words is "forty million, two hundred fifty-three thousand, five hundred fifty-four".