402026412 has 24 divisors (see below), whose sum is σ = 955762416. Its totient is φ = 131480128.

The previous prime is 402026411. The next prime is 402026431. The reversal of 402026412 is 214620204.

It is not an unprimeable number, because it can be changed into a prime (402026411) 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, 315423 + ... + 316694.

It is an arithmetic number, because the mean of its divisors is an integer number (39823434).

Almost surely, 2^402026412 is an apocalyptic number.

It is an amenable number.

402026412 is an abundant number, since it is smaller than the sum of its proper divisors (553736004).

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

402026412 is a wasteful number, since it uses less digits than its factorization.

402026412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632177 (or 632175 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 402026412 is about 20050.5963003597. The cubic root of 402026412 is about 738.0484321297.

Adding to 402026412 its reverse (214620204), we get a palindrome (616646616).

The spelling of 402026412 in words is "four hundred two million, twenty-six thousand, four hundred twelve".