1345778002 has 16 divisors (see below), whose sum is σ = 2089488960. Its totient is φ = 649308688.

The previous prime is 1345777969. The next prime is 1345778003. The reversal of 1345778002 is 2008775431.

It is a super-2 number, since 2×1345778002² = 3622236861334224008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1345778003) 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, 111843 + ... + 123289.

It is an arithmetic number, because the mean of its divisors is an integer number (130593060).

Almost surely, 2^1345778002 is an apocalyptic number.

1345778002 is a deficient number, since it is larger than the sum of its proper divisors (743710958).

1345778002 is a wasteful number, since it uses less digits than its factorization.

1345778002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13505.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 1345778002 is about 36684.8470352542. The cubic root of 1345778002 is about 1104.0561002307.

The spelling of 1345778002 in words is "one billion, three hundred forty-five million, seven hundred seventy-eight thousand, two".