740040387 has 32 divisors (see below), whose sum is σ = 1043767296. Its totient is φ = 465484800.

The previous prime is 740040377. The next prime is 740040409. The reversal of 740040387 is 783040047.

It is a happy number.

It is not a de Polignac number, because 740040387 - 2²⁴ = 723263171 is a prime.

It is a super-2 number, since 2×740040387² = 1095319548782219538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (740040337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3070587 + ... + 3070827.

It is an arithmetic number, because the mean of its divisors is an integer number (32617728).

Almost surely, 2^740040387 is an apocalyptic number.

740040387 is a deficient number, since it is larger than the sum of its proper divisors (303726909).

740040387 is a wasteful number, since it uses less digits than its factorization.

740040387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 740040387 is about 27203.6833351662. The cubic root of 740040387 is about 904.5206244012.

The spelling of 740040387 in words is "seven hundred forty million, forty thousand, three hundred eighty-seven".