340777444 has 24 divisors (see below), whose sum is σ = 721647360. Its totient is φ = 137456256.

The previous prime is 340777421. The next prime is 340777447. The reversal of 340777444 is 444777043.

It is a super-2 number, since 2×340777444² = 232258532678346272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340777397 and 340777406.

It is not an unprimeable number, because it can be changed into a prime (340777447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357484 + ... + 358435.

It is an arithmetic number, because the mean of its divisors is an integer number (30068640).

Almost surely, 2^340777444 is an apocalyptic number.

340777444 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

340777444 is an abundant number, since it is smaller than the sum of its proper divisors (380869916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340777444 is a wasteful number, since it uses less digits than its factorization.

340777444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715947 (or 715945 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 40.

The square root of 340777444 is about 18460.1582875121. The cubic root of 340777444 is about 698.4847796627.

The spelling of 340777444 in words is "three hundred forty million, seven hundred seventy-seven thousand, four hundred forty-four".