740890215 has 48 divisors (see below), whose sum is σ = 1415205792. Its totient is φ = 356251392.

The previous prime is 740890211. The next prime is 740890217. The reversal of 740890215 is 512098047.

It is not a de Polignac number, because 740890215 - 2² = 740890211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 740890215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740890211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10429 + ... + 39881.

It is an arithmetic number, because the mean of its divisors is an integer number (29483454).

Almost surely, 2^740890215 is an apocalyptic number.

740890215 is a deficient number, since it is larger than the sum of its proper divisors (674315577).

740890215 is a wasteful number, since it uses less digits than its factorization.

740890215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29520 (or 29517 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 740890215 is about 27219.2985765614. The cubic root of 740890215 is about 904.8667284395.

The spelling of 740890215 in words is "seven hundred forty million, eight hundred ninety thousand, two hundred fifteen".