340978525 has 24 divisors (see below), whose sum is σ = 432409824. Its totient is φ = 266664000.

The previous prime is 340978489. The next prime is 340978529. The reversal of 340978525 is 525879043.

It is not a de Polignac number, because 340978525 - 2¹¹ = 340976477 is a prime.

It is a super-2 number, since 2×340978525² = 232532709022351250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340978529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208762 + ... + 210388.

It is an arithmetic number, because the mean of its divisors is an integer number (18017076).

Almost surely, 2^340978525 is an apocalyptic number.

It is an amenable number.

340978525 is a deficient number, since it is larger than the sum of its proper divisors (91431299).

340978525 is a wasteful number, since it uses less digits than its factorization.

340978525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 340978525 is about 18465.6038352392. The cubic root of 340978525 is about 698.6221365645.

The spelling of 340978525 in words is "three hundred forty million, nine hundred seventy-eight thousand, five hundred twenty-five".