1071437444 has 72 divisors (see below), whose sum is σ = 2483487552. Its totient is φ = 392855040.

The previous prime is 1071437443. The next prime is 1071437473. The reversal of 1071437444 is 4447341701.

It is a super-2 number, since 2×1071437444² = 2295956392810506272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071437443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82994 + ... + 95030.

Almost surely, 2^1071437444 is an apocalyptic number.

1071437444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071437444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241743776).

1071437444 is an abundant number, since it is smaller than the sum of its proper divisors (1412050108).

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

1071437444 is a wasteful number, since it uses less digits than its factorization.

1071437444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12093 (or 12074 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 1071437444 is about 32732.8190658855. The cubic root of 1071437444 is about 1023.2669326588.

The spelling of 1071437444 in words is "one billion, seventy-one million, four hundred thirty-seven thousand, four hundred forty-four".