1034440155 has 96 divisors (see below), whose sum is σ = 2115569664. Its totient is φ = 457797888.

The previous prime is 1034440153. The next prime is 1034440171. The reversal of 1034440155 is 5510444301.

It is a happy number.

It is not a de Polignac number, because 1034440155 - 2¹ = 1034440153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1034440151) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1583809 + ... + 1584461.

It is an arithmetic number, because the mean of its divisors is an integer number (22037184).

Almost surely, 2^1034440155 is an apocalyptic number.

1034440155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1034440155 is an abundant number, since it is smaller than the sum of its proper divisors (1081129509).

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

1034440155 is a wasteful number, since it uses less digits than its factorization.

1034440155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1034440155 is about 32162.7137381161. The cubic root of 1034440155 is about 1011.3507252315.

Adding to 1034440155 its reverse (5510444301), we get a palindrome (6544884456).

The spelling of 1034440155 in words is "one billion, thirty-four million, four hundred forty thousand, one hundred fifty-five".