1200040052 has 6 divisors (see below), whose sum is σ = 2100070098. Its totient is φ = 600020024.

The previous prime is 1200040043. The next prime is 1200040073. The reversal of 1200040052 is 2500400021.

It can be written as a sum of positive squares in only one way, i.e., 1057810576 + 142229476 = 32524^2 + 11926^2 .

It is a super-2 number, since 2×1200040052² = 2880192252808325408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150005003 + ... + 150005010.

It is an arithmetic number, because the mean of its divisors is an integer number (350011683).

Almost surely, 2^1200040052 is an apocalyptic number.

It is an amenable number.

1200040052 is a deficient number, since it is larger than the sum of its proper divisors (900030046).

1200040052 is a wasteful number, since it uses less digits than its factorization.

1200040052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300010017 (or 300010015 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1200040052 is about 34641.5942473784. The cubic root of 1200040052 is about 1062.6703917180.

Adding to 1200040052 its reverse (2500400021), we get a palindrome (3700440073).

The spelling of 1200040052 in words is "one billion, two hundred million, forty thousand, fifty-two".