1340045154 has 64 divisors (see below), whose sum is σ = 3408076800. Its totient is φ = 382331664.

The previous prime is 1340045123. The next prime is 1340045173. The reversal of 1340045154 is 4515400431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322639 + ... + 326765.

It is an arithmetic number, because the mean of its divisors is an integer number (53251200).

Almost surely, 2^1340045154 is an apocalyptic number.

1340045154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340045154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1704038400).

1340045154 is an abundant number, since it is smaller than the sum of its proper divisors (2068031646).

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

1340045154 is a wasteful number, since it uses less digits than its factorization.

1340045154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004 (or 4998 counting only the distinct ones).

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

The square root of 1340045154 is about 36606.6271868906. The cubic root of 1340045154 is about 1102.4861546690.

Adding to 1340045154 its reverse (4515400431), we get a palindrome (5855445585).

The spelling of 1340045154 in words is "one billion, three hundred forty million, forty-five thousand, one hundred fifty-four".