340948557 has 12 divisors (see below), whose sum is σ = 494544960. Its totient is φ = 226346568.

The previous prime is 340948537. The next prime is 340948609. The reversal of 340948557 is 755849043.

340948557 is a `hidden beast` number, since 3 + 4 + 0 + 94 + 8 + 557 = 666.

It is not a de Polignac number, because 340948557 - 2⁷ = 340948429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340948507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77103 + ... + 81404.

It is an arithmetic number, because the mean of its divisors is an integer number (41212080).

Almost surely, 2^340948557 is an apocalyptic number.

It is an amenable number.

340948557 is a deficient number, since it is larger than the sum of its proper divisors (153596403).

340948557 is a wasteful number, since it uses less digits than its factorization.

340948557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158752 (or 158749 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 340948557 is about 18464.7923627643. The cubic root of 340948557 is about 698.6016690765.

The spelling of 340948557 in words is "three hundred forty million, nine hundred forty-eight thousand, five hundred fifty-seven".