74887490 has 16 divisors (see below), whose sum is σ = 134923320. Its totient is φ = 29927040.

The previous prime is 74887457. The next prime is 74887507. The reversal of 74887490 is 9478847.

It can be written as a sum of positive squares in 4 ways, for example, as 66308449 + 8579041 = 8143^2 + 2929^2 .

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, 10376 + ... + 16044.

Almost surely, 2^74887490 is an apocalyptic number.

74887490 is a deficient number, since it is larger than the sum of its proper divisors (60035830).

74887490 is a wasteful number, since it uses less digits than its factorization.

74887490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6997.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 74887490 is about 8653.7558320073. The cubic root of 74887490 is about 421.5053502058.

It can be divided in two parts, 748 and 87490, that multiplied together give a triangular number (65442520 = T₁₁₄₄₀).

The spelling of 74887490 in words is "seventy-four million, eight hundred eighty-seven thousand, four hundred ninety".