10401012 has 36 divisors (see below), whose sum is σ = 26906880. Its totient is φ = 3385872.

The previous prime is 10401011. The next prime is 10401023. The reversal of 10401012 is 21010401.

It is a happy number.

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 (9).

It is a junction number, because it is equal to n+sod(n) for n = 10400985 and 10401003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10401011) 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, 1812 + ... + 4907.

Almost surely, 2^10401012 is an apocalyptic number.

10401012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10401012 is an abundant number, since it is smaller than the sum of its proper divisors (16505868).

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

10401012 is a wasteful number, since it uses less digits than its factorization.

10401012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6772 (or 6767 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 10401012 is about 3225.0599994419. The cubic root of 10401012 is about 218.2856564441.

Adding to 10401012 its reverse (21010401), we get a palindrome (31411413).

The spelling of 10401012 in words is "ten million, four hundred one thousand, twelve".