1208401092 has 36 divisors (see below), whose sum is σ = 3167704176. Its totient is φ = 402800040.

The previous prime is 1208401057. The next prime is 1208401099. The reversal of 1208401092 is 2901048021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1208401099) 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, 620634 + ... + 622577.

Almost surely, 2^1208401092 is an apocalyptic number.

1208401092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1208401092 is an abundant number, since it is smaller than the sum of its proper divisors (1959303084).

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

1208401092 is a wasteful number, since it uses less digits than its factorization.

1208401092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243230 (or 1243216 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1208401092 is about 34762.0639778480. The cubic root of 1208401092 is about 1065.1326634977.

The spelling of 1208401092 in words is "one billion, two hundred eight million, four hundred one thousand, ninety-two".