400261302 has 72 divisors (see below), whose sum is σ = 1020357000. Its totient is φ = 113053248.

The previous prime is 400261297. The next prime is 400261313. The reversal of 400261302 is 203162004.

It is a happy number.

400261302 is a `hidden beast` number, since 400 + 261 + 3 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 75949 + ... + 81047.

It is an arithmetic number, because the mean of its divisors is an integer number (14171625).

Almost surely, 2^400261302 is an apocalyptic number.

400261302 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 400261302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510178500).

400261302 is an abundant number, since it is smaller than the sum of its proper divisors (620095698).

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

400261302 is a wasteful number, since it uses less digits than its factorization.

400261302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210 (or 5200 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 400261302 is about 20006.5314834931. The cubic root of 400261302 is about 736.9667056043.

It can be divided in two parts, 40026 and 1302, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 400261302 in words is "four hundred million, two hundred sixty-one thousand, three hundred two".