400498735800 has 96 divisors (see below), whose sum is σ = 1252533426480. Its totient is φ = 105854515200.

The previous prime is 400498735781. The next prime is 400498735801. The reversal of 400498735800 is 8537894004.

It is a self number, because there is not a number n which added to its sum of digits gives 400498735800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400498735801) 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, 2885731 + ... + 3021330.

Almost surely, 2^400498735800 is an apocalyptic number.

400498735800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400498735800 is an abundant number, since it is smaller than the sum of its proper divisors (852034690680).

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

400498735800 is a wasteful number, since it uses less digits than its factorization.

400498735800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907193 (or 5907184 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 400498735800 in words is "four hundred billion, four hundred ninety-eight million, seven hundred thirty-five thousand, eight hundred".