1908797954 has 16 divisors (see below), whose sum is σ = 3282754176. Its totient is φ = 815424000.

The previous prime is 1908797953. The next prime is 1908797963. The reversal of 1908797954 is 4597978091.

It is a super-2 number, since 2×1908797954² = 7287019258389172232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1908797893 and 1908797902.

It is not an unprimeable number, because it can be changed into a prime (1908797953) 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, 214847 + ... + 223554.

It is an arithmetic number, because the mean of its divisors is an integer number (205172136).

Almost surely, 2^1908797954 is an apocalyptic number.

1908797954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1908797954 is a deficient number, since it is larger than the sum of its proper divisors (1373956222).

1908797954 is a wasteful number, since it uses less digits than its factorization.

1908797954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438721.

The product of its (nonzero) digits is 5715360, while the sum is 59.

The square root of 1908797954 is about 43689.7923318480. The cubic root of 1908797954 is about 1240.4711082786.

The spelling of 1908797954 in words is "one billion, nine hundred eight million, seven hundred ninety-seven thousand, nine hundred fifty-four".