1042401045 has 16 divisors (see below), whose sum is σ = 1906104960. Its totient is φ = 476526144.

The previous prime is 1042401043. The next prime is 1042401049. The reversal of 1042401045 is 5401042401.

It is a happy number.

1042401045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1042401045 - 2¹ = 1042401043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042401043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4963710 + ... + 4963919.

It is an arithmetic number, because the mean of its divisors is an integer number (119131560).

Almost surely, 2^1042401045 is an apocalyptic number.

1042401045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042401045 is a deficient number, since it is larger than the sum of its proper divisors (863703915).

1042401045 is an equidigital number, since it uses as much as digits as its factorization.

1042401045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9927644.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1042401045 is about 32286.2361541261. The cubic root of 1042401045 is about 1013.9384972948.

Adding to 1042401045 its reverse (5401042401), we get a palindrome (6443443446).

The spelling of 1042401045 in words is "one billion, forty-two million, four hundred one thousand, forty-five".